Metal shoe-sole.



. E- A. BENSQN.

v METAL SHOE sous.

' APPLICATION man man, 1916. 1,210.587. Patented Jan. 2,1917.

2 SHEETSSHEET I.

wowtm ELMER A FJENSON- I APPUC ATLON FILEDJANJI, l9l6- E. A. BENSON.

- mam snoz SOLE.

Patented Jan; 2, 1917 2 SHEETS-SHEET 2.

ELMER. A. BENSON, or rnmr, rumors.

METAL SHOE-SOLE.

Specification of Letters Patent. 7

Application filed January 17, 191.6. Serial No. 72,563.

To all whom it may concern) Be it known that I, Emma AoBnivsoma citizen of the United States, residing at Peru, in thecounty of La Salle and State of Illinois, have invented certain newand useful Improvements idMetal Shoe-Soles, of

which the following is a specificatiom'reference being had to the accompanying awings.

This invention ,relates to, ail-improved metal shoe sole and has forfits primary obfat ject to rovide a metal soleizfor rubber or leather ootd'orshoes, which can'be-easily; and quickly attached to s oeforremoved;

therefromu J Y It man-additional object of theinventien to provide a. metallic sole for shoes,*jw hi chis so constructed thatthe same is er tremely most severe usage while; at these-me time, it; has a' maximum off-flexibility and-will Ferf p oti The invention'hasiforfone of its more inc-4.- ,p portant detail 7 obj sets, to 1 provide a 1netal" shoe sole constructed in two sections, an im-'- proved flexible joint connection between; said sections at the hallofthe:footg}aridmeans for preventing the entrance of diner v edgev ofltherother section 7 of the'shoe sole 1s provided with a convexrib or enlargement 4 l4 which laps upon the rib l2 and has slidmg contact with the concave facelB thereof. The ends of I thej'upstandingflanges/1 on mit of the freeand' as'y bending ofthef other foreign-matter into the joint.

With the above and other objects in view, my nvention consists in the novel features of construction, COIIllOIIlfltlOil' and arrangement of partsto be hereinafter more fully I described, claimed and illustrated in the eecompanying drawing, in which,

' Figure 1 is a bottom plan v ew of a shoe provided with my improved auxiliary meta'llic sole; Fig.- 2 is a side elevation showingthe shoe flexed as in walking, to clearly illustrate the action of the joint between the me tallic sole sections; Fig. 3 is a section taken on the line 3-3 of Fig. 1; Fig. 4 is an enlarged fragmentary longitudinal section, through the joint; Fig. 5 is an enlarged detail vertical section illustrating the means for fasten" ing the auxiliary sole to the shoe; Fig. 6 1s a detail perspective view of one of the fastening belts or screws and a series of calks'of various forms, any one of whlch may be ap plied to the threaded end of the bolt; and r Fig. 2 is a perspective view or: an. integral. fastening bolt or screw and eallr.

Referring in: detail to the drawing, 5 des ignates the sole of the shoe proper which may be of leather, rubber, or any other fiexi' ble material, and 6 indicates the heel portion. of the shoe which may be built up of layers of leather or of wood.

My improved auxiliary shoes sole sections are preferably formed from aluminum wh1ch,as 1s well known, is exceedingly li ht,

the arch-of the. shoe and the offset heel por'- none. The other section 8 of the shoe sole 1 constitutes the forward toe portion thereofi "Each of thesefsole sections is formed on its edge ,WllEh a continuous upstanding flange, V

nd cated at 10, which is adapted .to' engage against the eirtended edge of the leather or rubber shoesole. Upon the bottom face of durable and cap ble-0r withstanding the each "6f the. etal sole sections, spaced lon- Patented Jan. 2, 1917.

gitudinallyeXtending-V shaped ribs -11 are 'form'edo'r secured in any preferred manner.

Theseribs provide means forfs'ecure gripng =engagement with treacherous s'urfaces offdiifereiit nature so that the wearer will not slip and fall and sufler probableinjury.

Along the. rear edge of the forward -sec-- tion 8 of the metal sole, the same is enlarged and oiiset, as indicated at 12. v The forward these'ctionJ'I have their upper edgescut out or recessed, as at 15, and disposed in sub sole lieexteriorly of the vertical walls of the sole section 7 and have their Supper {edges turned inwardly .gnr bent over the recessed edges 15, as shown at 16. By thus lapping the upper edges of these walls 10, the sections of the sole'lare reinforced at theouter edgesof.

the shoe and held against any possibility of relative transverse shiftin a protection is also after ed to'the flexible joint and the entrance of gravel or dirt between the contacting faces of the joint is prevented...

Each of the metal sole sections is provided adjacent, to its outer edge, with a plurality of spaced openings which, when the auxiliary sole is applied tothe shoe, coincide or ovement, whileregister with openings which have been formed in the outwardly projecting edge of the shoe sole proper. Through these coinciding openings, the bolts 17 are disposed. These bolts are provided with flat surfaced heads 18 on one of their ends, and at diametrically opposite points the shank of the bolt connected to the head by webs 19 which have sharp cutting edges and are adapted to bite into the material of the shoe sole and securely hold the bolt against turning movement. The other extremity of the bolt shank is threaded, as indicated at 28, for engagement with the threaded bore of the socket 22 formed in a calk 21 which also acts as a nut. tightly against the surface of the metallic shoe sole and provides additional means for obviating slipping of the foot in walking upon ic v surfaces.

As illustrated in Fig. 5, calks of various shapes and sizes may be provided in accordance with the particular requirements of the occupation of the individual wearer of the shoe. In Fig. 7, I have shown an integral construction of the calk and bolt shank, which may be used in the heel of the shoe, said shank being threaded directly into the layers of wood or leather of which the heel is formed.

From the foregoing description, taken in connection with the accompanying drawing, the construction, manner of use and several advantages of my invention will be clearly and fully understood. The sections of the metal sole can be easily and quickly applied to or removed from the boot or shoe and afford reliable and effective" means for protecting the foot of the wearer against injury and enabling him to walk with impunity over ice, mud, or other surfaces upon which it is difiicult to maintain a proper balance when the ordinary shoes are worn. It is obvious that any desired number of the calks may be used and the longitudinally extending ribs 11 multiplied in number, as preferred. As the auxiliary sole is constructed This calk is screwed up.

. bility is obtained and the wearer can freely bend the foot in walking without suffering any discomfort o1 inconvenience.

While I have shown and described the -preferred construction and arrangement of the several features of the device, it is to be understood that the same is susceptible of considerable modification and I, therefore,- reserve the privilege of adopting all such legitimate changes as may be fairly embodied within the spirit and scope of the invention as claimed.

Having thus fully described my invention, what I desire to claim and secure by Letters Patent is:*

An auxiliary metallic sole for shoes consisting of two sections each having an offset rib on one end, the upper surface of the rib on one section being concave and the rib on the other section lapping upon the rib on the first section and having a convex face for sliding engagement upon said concave face, each of said sole sections having an upstanding continuous flange on its outer edge to lie exteriorly of the extended sole of a shoe, the extremities of the flange on one sole section having their upper edges bent inwardly and lapped over the upper edges of the flanges on the other sole section, the upper margins of the flanges adjacent the ribs of the sections being substantially concentric to the convexed upper surface of the rib of the second section, and means for detachably fastening said metal sole sections to the sole of a shoe.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

- ELMER A. BENSON.

Witnesses:

J. V. LIEDLECKI, OLIVE E. NonBERG.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. O. 

